The Jibbon reef complex is a cluster of deep reefs discovered by McFadyen and the St George Scuba Club from the 2000s onward, named in a running joke after fast-food outlets – because such outlets are always found near one another. Pizza Reef, named because it is round, came first; KFC, Maccas, Hungry Jacks, Red Rooster and Oporto followed as the club found neighbouring reefs, often by accident when wind pushed the boat off the intended mark. Hungry Jacks was another accidental discovery, found when wind pushed the boat north-east from Pizza Reef, and it lies just north of Maccas.

The main feature is a wall running north–south that drops from a 20 m reef top to 24–25 m and then slopes across rocks to just over 27 m on sand, with small boulders leading out to a smaller wall and then the sand. Further north, larger boulders sit on the rocky section before the sand. Along the wall are low but large overhangs and tiny caves, and to the north the reef flattens and turns west.

The fixed life is rich – very large sponges, small gorgonians and many sea squirts – and under the boulders divers find Port Jackson sharks and cuttlefish, with occasional weedy sea dragons. The fish can be abundant: huge numbers of seapike, yellowtail, silver sweep and trevally, plus bastard trumpeter, black reef leatherjackets and one-spot pullers. The route is simple – north along the wall to the western turn, back along the western section, then south past the anchor to the deeper wall – and fits comfortably into a nitrox dive.

As with the rest of the complex, only private boats and the St George Scuba Club dive it. It suits experienced Advanced divers who have done Pizza and Maccas and want to explore further.

Boat only. Launch in Port Hacking (Gunnamatta Bay/Tonkin Park at Cronulla, Lilli Pilli or Bundeena ramps) and run out through the entrance; the Jibbon reef complex lies just east and south-east of Jibbon Bombora, 5–10 minutes from the ramps. Go out of Port Hacking and turn a little south once level with Jibbon Bombora.

McFadyen's anchoring position is 34° 04.8320' S 151° 10.8774' E, on the reef top at about 20 m.

These reefs sit just outside Port Hacking, exposed to swell from the north-east through the south-east, with some southerly wrap past Jibbon Bombora; plan on seas under about 1.5 m. At 20–27 m they are below most surge once down, but anchoring needs moderate conditions. Water quality is good because the adjacent Royal National Park contributes little runoff, and visibility is usually 12–20 m; heavy prolonged rain can bring dirty water out of Port Hacking on the ebb.

Westerly and north-westerly winds give the best days.

Head north about ten minutes along the main wall, exploring boulders and sand, to where the reef flattens and turns west (the turn point). Return south along that western section to the main reef, continue south past the anchor and east to the deeper wall before returning.

Nitrox (EAN28–32) recommended; bottom time on air about 22–29 min.

No regular charter – private boat or dive-club (St George Scuba Club) only; no charter boat currently operates out of Port Hacking.